13210025 has 6 divisors (see below), whose sum is σ = 16380462. Its totient is φ = 10568000.

The previous prime is 13210013. The next prime is 13210033. The reversal of 13210025 is 52001231.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3655744 + 9554281 = 1912^2 + 3091^2 .

It is not a de Polignac number, because 13210025 - 2¹⁶ = 13144489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13209991 and 13210009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264176 + ... + 264225.

It is an arithmetic number, because the mean of its divisors is an integer number (2730077).

Almost surely, 2^13210025 is an apocalyptic number.

It is an amenable number.

13210025 is a deficient number, since it is larger than the sum of its proper divisors (3170437).

13210025 is an equidigital number, since it uses as much as digits as its factorization.

13210025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528411 (or 528406 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13210025 is about 3634.5598082849. The cubic root of 13210025 is about 236.3929642423.

Adding to 13210025 its reverse (52001231), we get a palindrome (65211256).

The spelling of 13210025 in words is "thirteen million, two hundred ten thousand, twenty-five".